Improved compound for the manufacture of artificial marble



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OF WILHELM MEYER, DECEASED.

Letters Patent No. 86,962

, dated February 16, 1869.

IIVIPROVED COMPOUND FOR THE MANUFACTURE OI ARTIFICIAL MARBLE.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concu'ui Be it known that WILHuLM Mnl'nii, of Berlin, Prussia, invented new and useful Compounds forthe Manic facturc of. Artificial Marble; and that the following is a full, clear, and exact description of his invention.

The nature of said invention consists, first, in the preparation of a. liquid compound, composed of several ingredients, which is made and compounded as is hereinafter set forth, which compound is used to prepare a second compound or sets of compounds, of form and appearance similar to put y, and this second compound, or several of these secon compounds mixed together, forming, when dry, an artificial marble, of any desired form or color; and is of gteat practical value for furniture, and all the various lpurposcs to which marble is applied, besides susceptible of many uses to which marble oonld-not-be prnoilcallg' applied.

To enable others skilled in the art to make and use this invention, he proceeded to describe its several ingredients, and the mode of preparing the several compounds.

The ingredients used in the preparation ofthe firstnamed liquid compound, with their proportions, are as follows:

Three (3) pounds of boiled linseed-oil.

One (1) pound ten (10) ounces of gum-dammar. I

Six (6) ounces of iodide of potassium.

Twelve (12) ounces of rosin.

One half (i) pound of Venetian turpentine.

Six (6) pounds of the best Lime, slaked or unslaketb Nine (9) quarts of water.

Now, to prepare the compounds, take an iron vessel or kettle, and into this kettle put one half of the boiled linseed-oih'or one and one-half (1%) pound, together with the gum-(laminar, iodide of potassium, rosin, and Venetian turpentine. Put this kettle over a slow fire, so arranged that the flames of the fire cannot get to the top of the kettle, and thus ignite the contents. As soon as the contents become hot, they should be stirred so as not to boil over, and this is continued until all of the contents become well melted and mixed to gethcr.

After this is done, strain the contents through a fine piece ofmuslin, taking care that the liquid which is strained through be put into a warm vessel, and be kept warm, so as not to congeal.

Then put the lime into a clean iron kettle or vessel, and pour the water into it, and put in the balance of the boiled linseed-oil. Put this kettle. over a slow fire, and as soon as it gets hot, commence stirring it. It the lime is good, it will appear in long streaks upon stirring, and the stirring must be kept up until all of these streaks disappear, and the contents of the kettleare well cooked.

After this is done, the contents may be strained through nnislin into the same vessel with the contents of thofirst kettle.

specifieatioin-and forms the. basis of the other compound, and of the marble itself.

To prepare the second,or putty-compound, as it may be termed, a quantity of :he first compound is put into a suitable vessel, which should be warm, and enough fine whiting is added and stirred in to make, with the liquid compound, astifl paste. This paste is then taken .smtonioa table, ovcnvthiclrwhiting has been sprinkled, and is thoroughly worked with the hands untiLit becomes like dough'or putty.

To obtain any paiticular color for this compound, a quantity of the proper color, which has been ground fine and carefully sifted, so as to free it from any lumps,

' is put into a crock and mixed up to a paint with some of the liquid compound.

Then, as the kneading of the putty-compound is going on, this paint is to be added in small quantities, from time to time, and well worked in, until enough has been used to give the whole lump the desired color.

The quantity of color to be used in any particular case depends on the strength of color which the whole lump is to have, and is agnatter of judgment for the workman. y

The colors most commonly used are the finest Frankfort-black, zinc-white, mahogany-brown, chrome-yellow, and light and dark chrome-green.

This putty-compound should be worked in a room from 85 to 100 Fahrenheit temperature, as it gets stiff and hard in a colder room, and is hard to work.

If it is desired to make a marble of considerable specific gravity, some sulphate of baryta may be added to the lump while kneading it.

After the lump is well worked, and the color thoroughly worked in, so that the lump is free from any streaks, and of uniform color, it is wrapped up in a moderately wet cloth. 1

As many difibrent'colors may be prepared in this way as are wanted, and each and all of them, after b ing wrapped up in a wet cloth, are to be set away in a wooden vessel, which should'also be covered with a wet cloth, so as to keep out the light.

They should be kept in a room which has a uniform temperature of about 75 Fahrenheit, and the cloths should be taken oil and dampened as often as they get dry. In this manner, this compound, of any desired color, may be kept for a considerable time, and is always ready for use.

By having various'colored compounds, any desired color of marble, or marble of a combination of colors, may be made at any time. The manner of making the marble with these compounds, and of working and finishing such marble, is fully shown in the specification for a patent on artificial marble, invented by the said \Vuammr Mouse, and. need not be given here.

i Having thus fully set forth the ingredients, and niode of making the fluids and putty-conrpounds, he wished to be understood that, although he considered the proportionsvgivcn, and this mode of compounding said ingredients, as the best known to him, yet he reserved the right to vary somewhat therefi'om, without giving up his right to the compounds;

\Vhat he claimed as vhis invention, and desired to secure by Letters Patent, washer, A. D. 1868.

' JOB ABBOTT,

Administrator of Willi elm Meyer. Witnesses:

A. M. STOUT, CHAS. H. FLETCHER. 

